What if women, with different experiences, coming from different backgrounds, could design the city where they live, what would they do? This question filled with speculative potential is the core of this work. What is the women s imaginary about the city of Rio de Janeiro? And what do women think about Smart Cities? Writing about cities is also writing about design, because design shapes possible and apparently impossible worlds with its speculative dimension. In this work, which revolves around the design-city-gender triad, in addition to listening to women and their experiences, we seek to investigate how the gender debate is taken to consider the construction of more egalitarian and welcoming cities. We bring to light a concern with thinking about design and gender, highlighting the importance of thinking or designing critically in order to dream preferable worlds.